One-neutron halo structure of Ne
J.G. Li · N. Michel · H.H. Li · W. Zuo
We have applied the Gamow shell model to calculate nuclear observables of Ne isotopes pertaining to one-neutron halo structure, these nuclei being situated close to neutron drip-line. As both many-body correlations and continuum coupling are taken into account in that approach, halo structure can be analyzed properly. Our calculations provide good descriptions of Ne, where asymptotic behavior is crucial for that matter. One-body density, neutron root-mean-square radii of Ne, and one-neutron overlap functions of Ne have been calculated as well. Our results support the presence of a one-neutron \textit{p}-wave halo in Ne, already pointed out experimentally. A similar situation also occurs in the ground state of Ne, which is mainly a \textit{p}-wave valence neutron coupled to the inner Ne \textit{core}. The excited state of Ne, which is dominated by a \textit{d}-wave valence neutron, has also been considered. A larger radius and more extended wave function occur for the ground state of Ne when compared to its first excited state. The present results suggest that Ne is a good candidate for one-neutron \textit{p}-wave halo in the medium-mass region.